Stretchable IC Tag for Secure Body Attachment
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Solution Overview
Problem
Existing IC tags used for facility management are prone to detachment from the human body or clothing, leading to incomplete recording of entrance and exit, and their firm attachment causes discomfort or damage to clothing, complicating attachment and detachment processes.
Innovation Solution
A stretchable attachment tag with a circuit board, stretchable wiring, identification signal generator, transmitter, and adhesive layer, allowing for easy and secure attachment and detachment without burdening the user, featuring a battery for power supply and a printing target layer with low visible light permeability for enhanced visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the IC tag is firmly attached to the human body or clothing, then the reliability of tracking is improved, but the comfort of the user deteriorates and damage to clothing may occur
Solution Approach 1:
The patent applies the dynamics principle by making the attachment tag stretchable so it can dynamically adapt to body movements and clothing deformation. The stretchable circuit board and wiring allow the tag to expand and contract with body motion, maintaining reliable contact without causing discomfort or damage. This dynamic flexibility resolves the contradiction between firm attachment for tracking reliability and comfort for the user.
2Ease of operation
If the IC tag is made stretchable to improve comfort, then the ease of operation is improved, but the structural stability may deteriorate
Solution Approach 1:
The patent employs flexible shells and thin films by using a stretchable circuit board and flexible wiring structure that can deform without breaking. This flexible construction maintains structural integrity while allowing the tag to stretch and conform to body movements, thus improving comfort without sacrificing structural stability. The flexible design enables the tag to maintain its functional composition while adapting to dynamic conditions.
3Ease of manufacture
If a regular circuit board is used, then the manufacturing precision is easier to achieve, but the adaptability to body movement deteriorates
Solution Approach 1:
The patent applies parameter changes by modifying the physical properties of the circuit board from rigid to stretchable. This parameter change in material flexibility allows the circuit board to adapt to body movements while still being manufacturable using conventional techniques adapted for flexible substrates. The stretchable circuit board maintains electrical connectivity through deformation, providing both manufacturability and adaptability to dynamic body conditions.
Data Source
AI summary
An attachment tag includes a stretchable circuit board having stretchability, a stretchable wiring line provided on a first main surface of the stretchable circuit board and having stretchability, an identification signal generator connected to the stretchable wiring line and configured to generate an identification signal containing identification information, a transmitter configured to transmit the identification signal generated by the identification signal generator, and an adhesive layer provided on a second main surface, different from the first main surface, of the stretchable circuit board and exhibiting adhesiveness.